Field of the Invention

The present invention relates to the swing mechanism used in the parts of dental CNC benches, robotic arms and automation systems that perform biaxial rotations.

In particular, the present invention relates to a biaxial swing mechanism, which has a compact and lightweight swing and also its serviceability is facilitated by taking the axis motor and transmission systems out of the swing.

State of the Art

Swing mechanisms with biaxial rotations are used for machining parts in dental CNC benches, robotic arms and automation systems that perform biaxial rotations.

The engine used for each axis drive in biaxial swing mechanisms is located next to the axis in the state of the art. This leads to large sized swing mechanisms due to the engines in the mechanism. Therefore, a compact rotary axis structure cannot be provided, and accordingly a mechanism with a heavy structure and requiring more engine power is obtained. Meanwhile, the serviceability of components such as engine and encoder cable is difficult since the engine is in the swing mechanism. In case of any malfunction in the swing mechanism, there are problems in production.

As a result of the aforementioned issues and the limited supply of available solutions, it became necessary to carry out an improvement in the relevant technical field.

Aim of the Invention

The present invention relates to a biaxial swing mechanism which eliminates the abovementioned disadvantages and brings new advantages to the relevant technical field. The main aim of the present invention is to reveal a swing mechanism with a compact and lightweight swing by taking the axis motor and transmission systems out of the swing.

Another aim of the present invention is to ensure that the transmission and movement required by the last axis in the machine axes or robot joints that make biaxial rotational movements can be moved to different points.

Another aim of the present invention is to reveal a swing mechanism with less engine power by taking the axis motor and transmission systems out of the swing, reducing the inertia of the mechanism.

Another aim of the present invention is to reveal a swing mechanism that is simple in structure and easy to service, with components such as the motor and encoder cable being outside the swing.

Another aim of the present invention isto reveal a swing mechanism wherein the drive system that turns the B axis is passed through the drive system that turns the A axis of the swing by moving the B axis out of the swing part of the motor and gearbox, a belt system with 90° rotation is used be tween the drive pulley driving the B axis and the B axis.

In order to fulfil all the aims that may arise from the above-mentioned and detailed explanation, the present invention is a swing mechanism of the present invention that is used in the parts of dental CNC benches, robotic arms and automation systems that perform biaxial rotations, comprising of the following; swing that holds a workpiece and moves the same in A axis and B axis, A axis motor, which enables the swing to move in the A axis rotation direction,

A axis reducer, which is associated with the A axis motor and provides reduction for the movement in the A axis by decreasing the speed from the A axis motor and increasing the torque,

- A axis belt, which is located on the A axis pulley connected to the A axis motor and transfers the movement of the A axis motor to the A axis reducer, B axis motor, which enables the swing to move in the B axis rotation direction, B axis reducer, which is associated with the B axis motor and provides reduction for the movement in the B axis by decreasing the speed from the B axis motor and increasing the torque,

B axis belt, which is located on the B axis pulley connected to the B axis motor and transfers the movement of the B axis motor to the B axis reducer, B axis drive shaft, which passes through the A axis reducer and makes rotational movement with the movement it receives from the B axis reducer, B axis drive gear, which is located on the B axis drive shaft and rotates with the B axis drive shaft,

B axis shaft, which is associated with the B axis drive gear and rotates through the B axis drive gear and moves the same angularly in the B axis rotation direction of the connected workpiece,

B axis 90° belt that provides movement transfer be tween the B axis drive gear and the B axis shaft.

The structural and characteristic features of the present invention will be understood clearly by the following drawings and the detailed description made with reference to these drawings. Therefore the evaluation shall be made by taking these figures and the detailed description into consideration.

Figures Clarifying the Invention

Figure 1 : Is the perspective view of the inventive swing mechanism.

Figure 2: Is the side view of the inventive swing mechanism.

Figure 3: Is the sectional view of the inventive swing mechanism.

Figure 4: Is the perspective view of the inventive swing mechanism from another angle.

Description of the Part References

10. Swing

20. A axis motor

21. A axis reducer

22. A axis pulley

23. A axis belt

30. B axis motor 31. B axis reducer

32. B axis pulley

33. B axis belt

34. B axis drive shaft

35. B axis drive gear

36. B axis shaft

37. B axis 90° belt

38. B axis belt tensioning system

A. A axis

A1. A axis rotation direction

B. B axis

B1. B axis rotation direction

P. Work piece

Detailed Description of the Invention

In this detailed description, the preferred alternatives of the inventive swing mechanism is described only for clarifying the subject manner such that no limiting effect is created.

In Figure 1 , the perspective view of the inventive swing mechanism is given. Accordingly, the swing mechanism mainly comprises the following; a swing (10) that holds a workpiece (P) and moves the same in A axis (A) and B axis (B), A axis motor (20), which enables the swing (10) to move in the A axis rotation direction (A1 ), A axis reducer (21) that provides reduction for the movement in the A axis (A) by decreasing the speed from the A axis motor (20) and increasing the torque, A axis belt (23), which is located on the A axis pulley (22) connected to the A axis motor (20) and transfers the movement of the A axis motor (20) to the A axis reducer (21), B axis motor (30), which enables the swing (10) to move in the B axis rotation direction (B1), B axis reducer (31) that provides reduction for the movement in the B axis (B) by decreasing the speed from the B axis motor (30) and increasing the torque, B axis belt (33), which is located on the B axis pulley (32) connected to the B axis motor (30) and transfers the movement of the B axis motor (30) to the B axis reducer (31 ), B axis drive shaft (34), which passes through the A axis reducer (21) and makes rotational movement with the movement it receives from the B axis reducer (31 ), B axis drive gear (35), which is located on the B axis drive shaft (34) and rotates with the B axis drive shaft (34), B axis shaft (36) which rotates by means of the B axis drive gear (35) and moves it angularly in the B axis rotation direction (B1) of the connected workpiece (P), B axis 90° bel t (37) that provides movement transfer between the B axis drive gear (35) and the B axis shaft (36), B axis belt tensioning system (38) taking the running clearance of the B axis 90°belt (37).

The swing (10), which constitutes the main structure of the inventive swing mechanism moves on the A axis (A) and B axis (B). The workpiece (P) is connected to the B axis (B) of the swing (10) so as to enable processing on CNC machines. In an alternative embodiment of the present invention, the swing (10) can also be used as a work piece of the robot carrying the joint of a robotic system or a gripper.

As seen in Figures 2 and 3, the movement of the swing (10) in the A axis rotation direction (A1) is provided by the A axis motor (20). Said A axis motor (20) is associated with the A axis reducer (21) by means of the A axis pulley (22) to which it is connected at one end and the A axis belt (23) on the A axis pulley (22). A axis reducer (21) provides reduction for the motion in the A axis (A) by decreasing the speed it receives from the A axis motor (20) and increasing the torque.

The movement of the swing (10) in the B axis rotation direction (B1) is provided by the B axis motor (30). Said B axis motor (30) is associated with B axis reducer (31) by means of B axis pulley (32) to which it is connected from one end and B axis belt (33) on B axis pulley (32). B axis drive shaft (34) is passed through A axis reducer (21). Said B axis drive shaft (34) makes rotational movement with the movement it receives from the B axis reducer (31). B axis drive gear (35), which rotates together with the B axis drive shaft (34) is located on the B axis drive shaft (34).

B axis drive gear (35) is connected to the B axis shaft (36) on which the workpiece (P) is connected, by means of the B axis 90° belt ( 37). Said B axis shaft (36) makes rotational motion by means of the B axis drive gear (35) and moves the work piece (P) connected on it angularly in the B axis rotation direction (B1 ).

B axis belt tensioning system (38), which takes the working clearance of the B axis 90°belt (37) is located on the B axis 90°belt (37 ). The operation principle of the inventive swing mechanism seen in Figure 4 is as follows;

B axis motor (30) transfers the rotational movement to the B axis reducer (31 ) by means of the B axis belt (33) and the B axis pulley (32). B axis reducer (31) rotates the B axis drive shaft (34) passing through the A axis reducer (21) by decreasing the speed and increasing the torque. B axis drive gear (35) on B axis drive shaft (34) also rotates and B axis (B) movement is obtained by providing a transmission between B axis drive gear (35) and B axis shaft (36) with the help of the B axis 90° belt (37). The positioning and repeatability capability of the swing mechanism is increased by taking the clearance of the B axis 90° belt (37) by means of the B axis belt tensioning system (38).

The movement of the swing (10) in the A axis (A) is provided by transmitting the rotational movement of the A axis motor (20) to the A axis reducer (21) by means of the A axis belt (23) and the A axis pulley (22). A biaxial swing mechanism, which is independent of each other, compact, simple structure and easy to service has been obtained with the help of the fact that the swing (10) is directly connected to the output of the A axis reducer (12)